behavioral ecology (exam 4) Flashcards
proximate (mechanistic)
how actions occur in terms of genetic neurological, hormonal & skeletal-muscular mechanism involved
ultimate (evo)
why actions occur based on their evo consequences & history
What is the difference between innate and learned behavior?
-innate behavior is a behavior determined by biology (yawning)
-learned behavior is picked up during the lifetime (driving)
What are the two types of foragers in the fruit fly larvae example?
-rovers (move around)
-sitters (stay in one spot)
How do organisms that use compass orientation navigation get around?
sun, stars, magnetic fields
What are the 3 types of navigation?
-piloting
-compass orientation
-true navigation
What do organisms that use piloting to navigate do to get around?
landmarks
Communication
an organism creates a stimulus that another organism responds to
How does the honeybee’s dance communicate the location of food?
-the length is of the dance is proportional to the distance of the food from the hive
-the direction of dance is proportional to direction of the food source
Altruism
behavior that has a fitness cost to the individual exhibiting the behavior / fitness benefit to the recipient
Kin selection
natural selection that acts through benefits to relatives at the expense of the individual
Hamilton’s rule
a model created to explain how an allele for altruistic behavior could increase fitness
What is the equation for Hamilton’s rule?
(Br>C)
B: fitness benefits for recipient
r: relation between altruist and recipient
C: fitness cost to altruist
Inclusive fitness
direct fitness + indirect fitness
Reciprocal altruism
cooperative relationships among non-relatives
